<template>
  <view>
    <view class="goods-item">
      <!-- 左侧的盒子 -->
      <view class="goods-item-left">
       <radio
         @click="radioClickHandler"
       v-if="showRadio" color="#C00000":checked="goods.goods_state" />
        <image :src="goods.goods_small_logo || defaultPic" class="goods-pic" ></image>
      </view>
      <!-- 右侧的盒子 -->
      <view class="goods-item-right">
        <!-- 商品名字 -->
        <view class="goods-name">{{goods.goods_name}}</view>
        <view class="goods-info-box">
          <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
          <uni-number-box min="1" :value="goods.goods_count" v-if="showNum" 
           @change="numChangeHandler"/>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    name:"my-goods",
       // 定义 props 属性，用来接收外界传递到当前组件的数据
    props:{
       // 商品的信息对象
       goods:{
         type:Object,
         default:{}
       },
        showRadio: {
             type: Boolean,
             // 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
             default: false,
           },
           showNum:{
               type: Boolean,
                default: false,
           }
    },
    data() {
      return {
          defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
      };
    },
    methods:{
       numChangeHandler(val){
         this.$emit('num-change',{
            goods_id: this.goods.goods_id,
              goods_count: +val
         })
       },
      radioClickHandler(){
        this.$emit('radio-change',{
             // 商品的 Id
                goods_id: this.goods.goods_id,
                // 商品最新的勾选状态
                goods_state: !this.goods.goods_state
        })
      }
    },
    filters:{
        // 把数字处理为带两位小数点的数字
        tofixed(num){
          return Number(num).toFixed(2)
        }
    }
  }
</script>

<style lang="scss">
.goods-item{
  display: flex;
   padding: 10px 5px;
   border-bottom: 1px solid #f0f0f0;
    .goods-item-left {
       margin-right: 5px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        .goods-pic {
             width: 100px;
             height: 100px;
             display: block;
           }
       }
       .goods-item-right {
         display: flex;
          flex-direction: column;
           justify-content: space-between;
           flex: 1;
            .goods-name {
                 font-size: 13px;
               }
               .goods-info-box{
                 display: flex;
                 justify-content: space-between;
                 align-items: center;
                 .goods-price {
                       font-size: 16px;
                       color: #c00000;
                      }
               }
             
       }
}
</style>